﻿/***********************************************************************************\
| Copyright (c) 2011, Bashar Al-Rawi                                                |
| All rights reserved.                                                              |
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|      derived from this software without specific prior written permission.        |
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ComponentModel;

namespace Arabic.Controls
{
    internal class KeyRow : System.ComponentModel.INotifyPropertyChanged
    {
        internal IList<KeyboardKey> Keys { get; private set; }

        // this assumes that all keys in the row have the same height
        internal double Height
        {
            get { if (Keys.Count > 0) return Keys[0].Height; else return 0; }
        }

        private double _width = 0;
        internal double Width
        {
            get
            {
                return _width;
            }   
        }

        internal KeyRow()
        {
            Keys = new List<KeyboardKey>();
        }


        internal void Update(bool orientationChanged)
        {
            if (orientationChanged)
            {
                foreach (KeyboardKey key in Keys)
                {
                    key.Update();
                    _width += key.Width;
                }

                RaisePropertyChange("Width");
                RaisePropertyChange("Height");
            }
        }

        public event System.ComponentModel.PropertyChangedEventHandler PropertyChanged;
        
        private void RaisePropertyChange(string propertyName)
        {
            System.Diagnostics.Debug.Assert(!string.IsNullOrEmpty(propertyName));
            var handler = PropertyChanged;
            if (handler != null)
            {
                handler(this, new PropertyChangedEventArgs(propertyName));
            }
        }
    }
}
